60 V, 32-Channel (Sinking Output), 8 µs C Series Digital Module—The NI‑9477 works with industrial logic levels and signals to connect directly to a wide array of industrial relays, solenoids, and motors. Each channel is compatible with signals from 5 V to 60 V and features isolation from channel‑to‑earth ground. You can wire the NI‑9477 channels in parallel to sink up to 20 A of current per module (1 A per channel maximum).